Disk space management in Jenkins - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is disk space management in Jenkins?

Disk space management in Jenkins means keeping track of and cleaning up files and data that Jenkins creates, so the server doesn't run out of storage.

beginner

How can you check disk usage on a Jenkins server?

You can check disk usage by running commands like df -h to see free space or du -sh /var/lib/jenkins to see Jenkins folder size.

intermediate

What Jenkins plugin helps manage disk space by cleaning old builds?

The 'Discard Old Builds' feature or plugin helps remove old builds to free up disk space automatically.

beginner

Why is it important to manage disk space in Jenkins?

If disk space runs out, Jenkins can stop working properly, causing builds to fail and slowing down development.

intermediate

Name a simple way to automatically delete old Jenkins build data.

You can configure 'Build Discarder' settings in Jenkins jobs to keep only a certain number of builds or days, deleting older ones automatically.

Which command shows the free disk space on a Linux server running Jenkins?

A ps aux

B ls -l

C df -h

D cat /etc/passwd

The command df -h displays disk space usage in a human-readable format.

What does the Workspace Cleanup Plugin do in Jenkins?

A Monitors CPU usage

B Deletes old workspace files to free disk space

C Builds new projects automatically

D Manages user permissions

The Workspace Cleanup Plugin removes old files in the workspace to save disk space.

Why should you configure build discarder settings in Jenkins jobs?

A To change build environment variables

B To speed up the build process

C To increase the number of builds stored

D To limit the number of stored builds and save disk space

Build discarder settings help keep only recent builds, preventing disk space from filling up.

What happens if Jenkins runs out of disk space?

A Builds may fail and Jenkins may become unstable

B Jenkins will automatically increase disk space

C Nothing, Jenkins ignores disk space

D Jenkins will delete all jobs

Running out of disk space causes build failures and instability in Jenkins.

Which folder typically contains Jenkins data that can grow large over time?

A /var/lib/jenkins

B /etc/jenkins

C /usr/bin/jenkins

D /home/jenkins

The Jenkins home directory, usually at /var/lib/jenkins, stores build data and configurations.

Explain how you would monitor and manage disk space on a Jenkins server to prevent build failures.

Think about checking space, cleaning old files, and automatic deletion.

Describe why disk space management is critical in Jenkins and what problems it helps avoid.

Consider what happens if disk space is full.